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Performance of Switched Reluctance Motor for Small Electric Vehicle in Urban Mobility

ARAI-Yogesh Krishan Bhateshavar
ARAI Academy-Vignesh S, Mohammad Rafiq Agrewale, Kamalkishore Vora
  • Technical Paper
  • 2019-28-2501
To be published on 2019-11-21 by SAE International in United States
Small electric vehicles are challenging in nature while designing the power train and especially the mounting of batteries within the volume available. In this research, power train of small electric vehicle is designed and it is compared with the electric vehicles. The designed vehicle should meet the requirements of urban car so that it can be preferred in urban mobility. Emphasis is given on studying performance parameters such as motor speed, torque for different urban driving cycles by altering the motor and its no. of poles. Battery pack is designed to fit under the front hood of the vehicle whereas motor is fitted at the rear. Range is estimated using Simulink and it is validated with mathematical calculation using Peukert method performed in MATLAB. It is concluded that the designed vehicle with Switched Reluctance Motor 6/4 configuration of 15 kW, 110 Nm is sufficient to meet the urban car in 2020 targets. NCA battery is preferred for range improvement. Retro fitment is given higher priority while designing battery pack.
 

Design improvements in advanced automotive batteries using AI

International Centre For Automotive Tech.-Devesh Pareek Sachin
  • Technical Paper
  • 2019-28-2505
To be published on 2019-11-21 by SAE International in United States
Introduction: The advent of electric mobility is changing the conventional mobility techniques and with this comes challenges to improve the performance of battery to optimize power consumption in electric vehicles. Objective: This paper would focus on the optimization of battery performance incoherent with vehicle power consumption behavior in terms of efficiency using decision-making ability based on given input signals
 

Performance & efficiency Improvement of Electric Vehicle Power train

International Centre For Automotive Tech.-Devesh Pareek
  • Technical Paper
  • 2019-28-2483
To be published on 2019-11-21 by SAE International in United States
Introduction: The advent of electric mobility is changing the conventional mobility techniques and their application in automobiles across all segments. This development comes with challenges ranging across varied sub -systems in a vehicle including Power Train, HVAC, Accessories, etc. Objective: This paper would concentrate on the Power train related sub systems & improvement of the same both in terms of Efficiency & Performance. Methodology: The electric power train consists of three major sub parts: 1. Motor Unit 2. Controller with Power electronics 3. Battery Pack with BMS We would concentrate on improving the overall efficiency and performance of all these subsystems while they perform in vehicle environment and work in tandem by deploying following techniques: a. Improved Regenerative Braking for converting vehicles Kinetic energy into electrical energy using specific algorithms and control techniques b. Optimization of Design Specs and duty cycle based on real world driving cycles. c. Innovative Heat dissipation techniques to minimize energy loss to heat. d. Efficient Electrical to Chemical Energy conversion and vice versa through use of optimization techniques based on…
 

SELF EXPRESSIVE & SELF HEALING CLOSURES HARDWARES FOR AUTONOMOUS AND SHARED MOBILITY

General Motors Technical Center India-Vijayasarathy Subramanian, Anandakumar Marappan, Biju Kumar, Masani Sivakrishna
  • Technical Paper
  • 2019-28-2525
To be published on 2019-11-21 by SAE International in United States
Shared Mobility is changing the trends in Automotive Industry and its one of the Disruptions. The current vehicle customer usage and life of components are designed majorly for personal vehicle and with factors that comprehend usage of shared vehicles. The usage pattern for customer differ between personal vehicle, shared vehicle & Taxi. In the era of Autonomous and Shared mobility systems, the customer usage and expectation is high. The vehicle needs systems that will control customer interactions (Self-Expressive) & fix the issues on their own (Self-Healing). These two systems / methods will help in increasing customer satisfaction and life of the vehicle. We will be focusing on vehicle Closure hardware & mechanisms and look for opportunities to improve product life and customer experience in ride share and shared mobility vehicles by enabling integrated designs, which will Self-Express & Self-Heal. Vehicle closures having direct human interfaces with components like closures, handle & other hardware's will be tracked for their performance parameters and usage pattern. The performance parameters will be tracked for every customer and mapped to…
 

Improved Performance of Electric Vehicles with Supercapacitor

Spel Technologies Private Limited-Rajendrakumar Laxminarayan Sharma
  • Technical Paper
  • 2019-28-2468
To be published on 2019-11-21 by SAE International in United States
Background: Due to Environmental concern worldwide, Mobility is under pressure to shift gear from fossil fuel to Electric. This is Rebirth of Electric Mobility is with state’s initiative, but it is facing bigger challenges than the 1900s era. Fossil fuel vehicles have already carved the benchmark on ease of range per charge, and time of charge (filling of fossil fuel), which needs to be at least matched by Electric Vehicles. The success of electric vehicles will not only be driven by state policy but also by performance and Economic Viability. While at this introduction level state is trying best to offset cost by way of subsidy/tax-sops offering. So, in clear terms “Performance of Electric Vehicles” need to be addressed and enhanced to put them in main stream in place of fossil fuel vehicles. In last 100 years there has been significant technological development in Motors, and Energy Storage, which is base of Electric mobility. Motors have fared well on technological development front, but energy storage has been struggling to keep pace with this Power hungry…
 

Rapid Prototyping and Implementation of traction motor drive for E- Mobility

Altair Engineering India Pvt Ltd-Sreeram Mohan
Altair Engineering India Pvt , Ltd.-Srikanth R
  • Technical Paper
  • 2019-28-2472
To be published on 2019-11-21 by SAE International in United States
Objective / Question: Is it possible to extend the envelope of simulation driven design and its advantages to development of complex dynamic systems viz. traction motor drives? The objective that then follows is how to enable OEM/Tier-1s to reduce wastes in the process of traction motor controller design, development, optimization and implementation. Motor control design to validation process is time consuming and tricky! Additionally, the requirement of software knowledge to write code to implement drive engineer's control ideas. The challenges here are - to name a few - algorithm for real time, addressing memory constraints, debugging, comprehending mathematical overflows, portability & BOM cost. These introduces wastes in parameters like time, cost, performance, efficiency and reliability. Methodology: Developing a new traction motor controller for E Mobility takes 18 - 24 months typically. 2 distinct activities take place in a loop. One is the motor drive engineer who has good understanding of the motor, requirement demands on the motor & digital control of the motor and the second is the software engineer who has a good understanding…
 

Paper Title : Connectivity in 2wheeler: Opportunities & Challenges

Robert Bosch Engrg & Bus Solutions , Ltd.-Sathyanarayana Rao
  • Technical Paper
  • 2019-28-2437
To be published on 2019-11-21 by SAE International in United States
Abstract: Future of Mobility is mainly driven by 3 main pillar viz Connected , Electrified and Automated Driving. With advancement in Communication Technology supplemented by huge customer Base , Connectivity has proven to deliver better Services to the End-user. The next step in this journey would be to connect the so called “Things” and the Things that we want to connect is the 2 wheeler in the Mobility domain This paradigm shift in the Mobility Landscape is expected to bring plethora of opportunities on one side as well as new challenges that were never witnessed in the realm of Mobility in the Past. This paper focuses on Opportunities in terms of Location Based services, Vehicle Management, Data Analytics, Infotainment , and possible Business scenarios and Models as well as challenges in Terms of Security and Data Ownership Methodology: Analysis of OEM and Supplier strategies/approaches and upcoming trends in connectivity and electrification. Results: We try to make an attempt to understand the Mobility trends in 2wheeler and how Connectivity shall play a pivotal role in enabling…
 

Electric Commercial Vehicles And Charging Solutions

Electromobility-Murlidhar Shrivallabha Phatak
Siemens-Manfred Schmidt, Amit Kekare
  • Technical Paper
  • 2019-28-2476
To be published on 2019-11-21 by SAE International in United States
Objective : Objective of the paper is to acquaint the audience with the concept of electric vehicles, Powertrain components used in an electric bus, Siemens contribution to the field of Electromobility, Typical configurations used in an electric bus, challenges and current limitations, emerging Technologies, future, how to address the future charging infra requirement. Methodology : The subject shall be discussed with the audience through a presentation coupled with Explanation by the presenter. The topic shall be opened with the concept of electromobility followed By history of electromobility at Siemens, contribution to the field of electro mobility, typical configurations of electric vehicles, Advantages of electric vehicles vis a vis conventional diesel buses, typical configurations of an electric bus, feasibility of electric buses for various transport services. Comparison of induction motor Vs. PEM motor (permanent magnet motor) technology, Digitalization And Siemens contribution in the field of digitalization, Future of electric mobility, use of alternate Fuels, charging infrastructure and solutions, technical details. Different charging infrastructure solutions and their pro and cons will be discussed in an open manner.…
 

Snowmobii 2.0 (Snow mobility Unmanned Vehicle)

Harshil Patel
  • Technical Paper
  • 2019-28-2516
To be published on 2019-11-21 by SAE International in United States
In this paper we propose the snow mobility vehicle in order increase the mobility and decrease the risk of accidents for carry food and medicines on snow bounded areas using unmanned tracked vehicle called as snowmobii 2.0. Our unmanned tracked vehicle can transport Food/medicines as well as Defence in snow bounded areas. This unmanned robot can run in loose as well as hard snow due to it have specific featured technology in base wheel(track wheel system) such as hub with outer seals that improve its durability. The proposed snow mobility vehicle is consist of many sophisticated-designed systems such as navigation system, obstacle detection system, communication system, temperature sensing system. Snowmobii 2.0 is easy to get command and enable significant reduction in losses of many solder’s precious lives due to unavailability of food and medicines at that place. An unmanned tracked vehicle (snowmobii 2.0) is actively being developed for military use to perform various task like mobility on snow surface, carry food/medicines, defence etc.Predominantly this vehicle is used to replace human movement at hazardous place. It…
 

THE NEED OF PERSONALIZATION AND OPPORTUNITIES IN AUTONOMOUS VEHICELS AND SHARED MOBILITY

General Motors Tech Center India-Suresh Dayakar, Vijayasarathy Subramanian, Keshava Reddy, Vijaykumar Shiramgond
  • Technical Paper
  • 2019-28-2520
To be published on 2019-11-21 by SAE International in United States
Shared mobility and Autonomous shared mobility take major share in Mobility 4.0. Personalization in a shared mobility will play a significant role in customer engagement in Autonomous world. In case of personal vehicle each customer will have their own personal settings in their own vehicle; in case of Autonomous shared mobility or shared mobility, we can satisfy individual customer need only by personalizing the vehicle for each individual user needs. This will give a cognitive feel of personal vehicle in a shared environment. We need technologies in improving vehicle interior and exterior systems and design to address personalization. We will be discussing on feasible opportunities of personalization and with illustrations in Vehicle Interior Cabin Space, Seat comfort, Compartments, Vehicle interior & Exterior Access / Controls. The summary will have design concept that will have personalization solutions satisfying each critical customer integration for all identified zones of vehicle exterior and interior. This approach of Design Thinking of identifying personalization need and enabling integrated design solution will help to improve customer satisfaction and engagement in Autonomous /…